TWI652474B - Apparatus and method for sensing environmental parameters of storage system - Google Patents

Abstract

The invention relates to a device and a method for sensing environmental parameters of a storage system, comprising a sensing body, a control unit, a temperature sensor and a capacitor electrode module. The control unit and the temperature sensor are disposed in the sensing body, the temperature sensor and the capacitor electrode module are electrically connected to the control unit, and the temperature sensor measures the temperature of the solid substance and transmits to the control unit; the capacitance electrode module quantity Measuring the capacitance of the solid matter and transmitting it to the control unit; the control unit obtains the moisture content through the change of the capacitance value signal, and calculates the ambient humidity in the storage tank by using the moisture content signal and the temperature signal, thereby measuring the sense Measure the environmental parameters such as temperature, moisture content and humidity of the storage system to achieve the integrated benefits of multi-functional sensing.

Description

Apparatus and method for sensing environmental parameters of a storage system

The invention relates to a level sensing device, in particular to a multifunctional level sensing device.

The raw materials in the large storage system often cause differences in the moisture content of the materials due to environmental factors such as temperature or humidity, so that the process of entering the factory will cause unstable process due to the change of water content, which often leads to heavy work and prolongs the process time. And cause material waste and other situations. In addition, common solid materials (Bulk Solids) such as cement, sand, feed, grain, iron sand, coal powder, tobacco, food, chemical fiber, etc., have blocky, granular, flake, powder due to water content problems. Problem. Therefore, the difference in water content will cause the material source to be placed in the storage bin, which will cause the material to deteriorate and the water content to be different, which will cause the work safety incident.

The traditional method of sensing environmental factors is to install a plurality of single-function sensors for measuring temperature, humidity, material moisture content, etc., and the sensing operation is performed in a part of the storage container. The arrangement of these openings causes inconvenience in storage use and maintenance. Especially in the measurement of humidity, most of the conventional hygrometers need to be perforated and ventilated. However, for the storage of solid materials, the venting holes are blocked by the materials, which makes them impossible to measure, so frequent maintenance is required. In addition, the design of the open-hole ventilation can not be applied to the hazardous area operation, and the IEC 60079 related explosion-proof certification regulations are adopted, resulting in various inconveniences in use.

In view of the above, the inventors of the present invention have made great efforts to solve the above problems in view of the above-mentioned prior art, and have made great efforts to solve the above problems, which has become the object of improvement of the present inventors.

An object of the present invention is to provide an apparatus and method for sensing environmental parameters of a storage system to measure environmental parameters such as temperature, moisture content and humidity of the storage system to achieve integrated benefits of multifunctional sensing.

In order to achieve the above object, the present invention is a device for sensing environmental parameters of a storage system, including a sensing body, a control unit, a temperature sensor, and a capacitor electrode module. The sensing body is a closed structure, and the sensing body has an accommodating space; the control unit is disposed in the accommodating space; the temperature sensor is disposed in the sensing body and electrically connected to the control unit, and the temperature sensor transmits the heat through The sensing method measures the temperature of the solid substance to obtain the temperature signal, and the temperature signal is transmitted to the control unit; the capacitor electrode module is coupled to the sensing body and electrically connected to the control unit, and the capacitor electrode module measures the capacitance of the solid substance to obtain the capacitance The value signal, the capacitance value signal is transmitted to the control unit; wherein, the control unit obtains the moisture content through the change of the capacitance value signal, and calculates the environmental humidity in the storage tank by using the moisture content rate and the temperature signal.

To achieve the above objects, the present invention is a method of sensing environmental parameters of a storage system, including providing means for sensing environmental parameters of a storage system, and the control unit is calculated by converting equations, moisture fraction signals, and temperature signals. The ambient humidity in the tank.

Compared with the prior art, the apparatus and method for sensing the environmental parameters of the storage system of the present invention are in the sealed sensing body control unit, the temperature sensor and the capacitor electrode module, and the temperature sensor sense is utilized. Measuring the temperature and capacitance electrode module to measure the change of the capacitance value, and then obtaining the moisture content, so that the control unit can calculate the humidity by using the conversion equation, the moisture content signal and the temperature signal. Furthermore, environmental parameters such as temperature, moisture content and humidity of the sensing system can be measured by a single device, thereby achieving integration benefits of multifunctional sensing, and increasing the convenience and practicability of the present invention.

10, 10a‧‧‧ Sense body

100‧‧‧ accommodating space

11, 11a‧‧‧Sealed housing

111‧‧‧Protection tube

112‧‧‧Metal joints

12a‧‧‧Flexible connectors

20, 20a‧‧‧Control unit

21‧‧‧Control circuit board

30, 30a‧‧‧ Temperature Sensor

40, 40a‧‧‧ capacitor electrode module

41‧‧‧Protection shell

42‧‧‧Electrode group

421‧‧‧First electrode unit

422‧‧‧Second electrode unit

43‧‧‧Insulation support

50, 50a‧‧‧容盒

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic plan view of the apparatus of the present invention for sensing environmental parameters of a storage system.

2 is another schematic plan view of the apparatus of the present invention for sensing environmental parameters of a storage system.

Figure 3 is a schematic plan view of an electrode assembly of the present invention.

The detailed description and technical content of the present invention are set forth in the accompanying drawings.

Please refer to FIG. 1, which is a schematic plan view of the apparatus for sensing the environmental parameters of the storage system of the present invention. The present invention is a device for sensing environmental parameters of a storage system for detecting solid matter in a storage tank, comprising a sensing body 10, a control unit 20, a temperature sensor 30 and a capacitor electrode module. Group 40. The temperature sensor 30 is configured to measure the temperature of the solid matter and is disposed in the sensing body 10 with the control unit 20. The capacitor electrode module 40 is connected to the sensing body 10 for measuring the capacitance value of the solid matter to obtain the liquid (water) rate. Moreover, the control unit 20 calculates the temperature measured by the temperature sensor 30 and the liquid (water) rate measured by the capacitor electrode module 40, and further the humidity of the solid material. The device for sensing the environmental parameters of the storage system is described in more detail later.

The sensing body 10 has an accommodating space 100. In this embodiment, the sensing body 10 includes a sealed housing 11 having the receiving space 100. Specifically, the sealed housing 11 includes a protective tube 111 and a metal joint 112 that screws the protective tube 111.

The control unit 20 is disposed in the accommodating space 100 of the sealed housing 11. The control unit 20 is configured to receive the temperature value measured by the temperature sensor 30 and the capacitance value measured by the capacitor electrode module 40 to obtain a liquid (water) by changing the capacitance value. rate. Accordingly, the control unit 20 can calculate the ambient humidity using the temperature value and the liquid (water) rate.

The temperature sensor 30 is disposed in the sensing body 10 and electrically connected to the control unit 20 . The temperature sensor 30 obtains a temperature signal by measuring the temperature of the solid matter in a heat sensing manner, and the temperature signal is transmitted to the control unit 20. In actual implementation, the temperature sensor 30 can be configured as a thermocouple, a resistance temperature sensor, or a thermistor, but is not limited thereto.

In this embodiment, the control unit 20 includes a control circuit board 21; further, the temperature sensor 30 is disposed on the control circuit board 21. However, in actual implementation, the setting position of the temperature sensor 30 can be adjusted according to the use condition.

Furthermore, the capacitor electrode module 40 is coupled to the sensing body 10 and electrically connected to the control unit 20. The capacitor electrode module 40 measures the capacitance of the solid material to obtain a capacitance value signal, and the capacitance value signal is transmitted to the control unit 20. The control unit 20 obtains a moisture content by the change of the capacitance value signal, and calculates an environmental humidity in the storage tank by using the moisture content rate and the temperature signal. Specifically, the ambient humidity herein refers to the humidity of material surface in the stable phase, and the environmental humidity is abbreviated as described later.

In the embodiment, the capacitor electrode module 40 includes a protective shell 41 , an electrode set 42 and an insulating support 43 . The electrode group 42 is disposed between the protective case 41 and the insulating support 43. In addition, please refer to FIG. 3, which is a schematic plan view of the electrode assembly of the present invention. Preferably, the electrode group 42 includes a first electrode unit 421 and a second electrode unit 422. The first electrode unit 421 and the second electrode The units 422 are opposed to each other and arranged in a comb arrangement. In actual implementation, the electrode group 42 may be provided as a copper foil substrate or a flexible substrate (FPC), but is not limited thereto.

It should be noted that the sensing body of the present invention has a closed structure, so that no through hole for setting the temperature sensor 30 is provided, and a device for sensing the environmental parameters of the storage system does not need to pass through the through hole. The setting is used to measure the ambient humidity, so that the problem that the through hole is easily blocked by the material and the measurement is not accurate can be avoided.

It should be noted that, in the method for sensing the environmental parameters of the storage system of the present invention, the ambient humidity in the storage tank is calculated by the control unit through a conversion equation and the moisture content signal and the temperature signal. Also, the conversion equation may be an equilibrium moisture equation derived from the Isotherm Equation (ERH empirical model, Henderson empirical model, Chung-Pfost empirical model, Owsin empirical model, Halsey empirical model, GAB (Guggenheim-Anderson) -deBoer empirical model, etc.) However, the calculation of the ambient humidity is not the focus of the application of the present invention and will not be described in detail herein.

In an embodiment of the invention, the device for sensing the environmental parameters of the storage system further includes a receiving box 50 connected to one side of the receiving box 50. The receiving box 50 is provided with components such as electronic circuit devices, so as to integrate the device 1 for sensing the environmental parameters of the storage system, so as to facilitate the user to perform the measuring operation.

Please refer to FIG. 2 as another schematic diagram of the apparatus for sensing the environmental parameters of the storage system of the present invention. This embodiment is substantially the same as the previous embodiment. The device 1a for sensing the environmental parameters of the storage system includes a sensing body 10a, a control unit 20a, a temperature sensor 30a, a capacitor electrode module 40a, and a capacitor. Box 50a is placed.

The difference between this embodiment and the previous embodiment is that the sensing body 10a includes a sealed housing 11a and a flexible connecting member 12a. Moreover, one end of the flexible connector 12a is connected to the receiving portion The cartridge 50a and the other end are connected to the sealed housing 11a. Preferably, the flexible connector 12a is a cable having a high tensile force.

Further, another difference is that the temperature sensor 30a is disposed in the flexible connector 12a. In addition, the measurement of the temperature, the measurement of the moisture content, and the calculation of the ambient humidity are the same as in the previous embodiment, and will not be described again.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and other equivalent variations of the patent spirit of the present invention are all within the scope of the invention.

Claims (10)

A device for sensing environmental parameters of a storage system for detecting solid matter in a storage tank, comprising: a sensing body, which is a closed structure, the sensing body has a receiving space; a control unit, setting In the accommodating space, a temperature sensor is disposed in the sensing body and electrically connected to the control unit, and the temperature sensor obtains a temperature by measuring the temperature of the solid substance through a thermal sensing manner a signal, the temperature signal is transmitted to the control unit; and a capacitor electrode module is coupled to the sensing body and electrically connected to the control unit, and the capacitor electrode module measures the capacitance of the solid material to obtain a a capacitance value signal, the capacitance value signal is transmitted to the control unit; wherein the control unit obtains a moisture content of the solid matter through the change of the capacitance value signal, and calculates the moisture content and the temperature signal An ambient humidity in the reservoir is obtained. The device for sensing the environmental parameters of the storage system according to claim 1, wherein the capacitor electrode module comprises a protective shell, an electrode group and an insulating support, the electrode assembly is disposed on the protective shell and the insulating support Between the bodies. The apparatus for sensing environmental parameters of a storage system according to claim 2, wherein the electrode group comprises a first electrode unit and a second electrode unit, the first electrode unit and the second electrode unit are opposite to each other and Comb arrangement. A device for sensing environmental parameters of a storage system according to claim 1, wherein the sensing body comprises a sealed housing having the receiving space. The device for sensing the environmental parameters of the storage system according to claim 4, further comprising a receiving box, the sensing system being connected to one side of the receiving box. The device of claim 5, wherein the sensing body further comprises a flexible connecting member, the flexible connecting member is connected to the receiving box at one end, and the other end is connected to the Sealed housing. The apparatus of claim 6, wherein the temperature sensor is disposed in the flexible connector. The apparatus of claim 6, wherein the flexible connector is a cable. The apparatus for sensing environmental parameters of a storage system according to claim 1, wherein the control unit comprises a control circuit board, and the temperature sensor is disposed on the control circuit board. A method of sensing an environmental parameter of a storage system, comprising: means for providing an environmental parameter of a sensing storage system according to any one of claims 1 to 9, wherein the control unit transmits a conversion equation and the moisture content signal and the The ambient temperature is calculated from the temperature signal.